Program flash0To MCU'sflash controllerInterruptControlregistersStatusregistersRegister accessMemory controllerFigure 27-1. Flash Block Diagram27.1.3 GlossaryCommand write sequence — A series of MCU writes to the flash FCCOB registergroup that initiates and controls the execution of flash algorithms that are built into theflash memory module.Endurance — The number of times that a flash memory location can be erased andreprogrammed.FCCOB (Flash Common Command Object) — A group of flash registers that are usedto pass command, address, data, and any associated parameters to the memory controllerin the flash memory module.Flash block — A macro within the flash memory module which provides the nonvolatilememory storage.Flash Memory Module — All flash blocks plus a flash management unit providinghigh-level control and an interface to MCU buses.IFR — Nonvolatile information register found in each flash block, separate from themain memory array.NVM — Nonvolatile memory. A memory technology that maintains stored data duringpower-off. The flash array is an NVM using NOR-type flash memory technology.NVM Normal Mode — An NVM mode that provides basic user access to flash memorymodule resources. The CPU or other bus masters initiate flash program and eraseoperations (or other flash commands) using writes to the FCCOB register group in theflash memory module.Chapter 27 Flash Memory Module (FTFA)KL04 Sub-Family Reference Manual, Rev. 3.1, November 2012Freescale Semiconductor, Inc. 381
